The Most Powerful Diesel Engine in the World!

**XTO** · January 18th, 2008 07:17 PM

The Wartsila-Sulzer RTA96-C turbocharged two-stroke diesel engine is the most powerful and most efficient prime-mover in the world today. The Aioi Works of Japan's Diesel United, Ltd built the first engines and is where some of these pictures were taken.

It is available in 6 through 14 cylinder versions, all are inline engines. These engines were designed primarily for very large container ships. Ship owners like a single engine/single propeller design and the new generation of larger container ships needed a bigger engine to propel them.

The cylinder bore is just under 38" and the stroke is just over 98". Each cylinder displaces 111,143 cubic inches (1820 liters) and produces 7780 horsepower. Total displacement comes out to 1,556,002 cubic inches (25,480 liters) for the fourteen cylinder version.
Some facts on the 14 cylinder version:
Total engine weight: 2300 tons (The crankshaft alone weighs 300 tons.)
Length: 89 feet
Height: 44 feet
Maximum power: 108,920 hp at 102 rpm
Maximum torque: 5,608,312 lb/ft at 102rpm

Fuel consumption at maximum power is 0.278 lbs per hp per hour (Brake Specific Fuel Consumption). Fuel consumption at maximum economy is 0.260 lbs/hp/hour. At maximum economy the engine exceeds 50% thermal efficiency. That is, more than 50% of the energy in the fuel in converted to motion.
For comparison, most automotive and small aircraft engines have BSFC figures in the 0.40-0.60 lbs/hp/hr range and 25-30% thermal efficiency range.

Even at its most efficient power setting, the big 14 consumes 1,660 gallons of heavy fuel oil per hour.

http://people.bath.ac.uk/ccsshb/12cyl/

**drey** · January 18th, 2008 08:36 PM

OT kaya ito?

**yebo** · January 18th, 2008 09:22 PM

i hate to burst your bubble but a lot of guys i know call those engines "CRAPSILA".

i myself have reasons to call them "crapsila".we have 5 units 6L26 wartsila engines here on the rig. we have had several warranty issues already. they are good when they are good, hate them when they turn to, um, crap.

i prefer EMDs. they drink oil, but they go on and on and on and on ....

**scharnhorst** · January 19th, 2008 02:56 PM

uy CRDi daw yan

**yellowjip** · January 22nd, 2008 11:39 AM

Well guys the engine reffered in the post is a 2 stroke engine. Im a marine eng. maintaining those big 2 stroke engines is part of my work on board ship. The CRD-I model is still in experimental stage. On the last ship i was on the engine output was only 13,000 hp but still the engine was as big as a house. We consumed 35 tons of bunker fuel everyday. Each cylinder had 3 injectors as big as a truck's injection pump. Everything is big on these engines.

**theveed** · January 22nd, 2008 01:17 PM

35 tons... damn, I have no idea how much that is hehehe... but that's a lot

**drey** · January 22nd, 2008 09:25 PM

Imagine 35 tons of fuel? How many liters is that?

**yellowjip** · January 30th, 2008 07:05 PM

Mga sirs more or less 1000 lters to a ton thats almost 35 thousand liters a day.And bunker in the maritime market is more than 300 dollers a ton.We have purifiers that clean the fuel with the use of centrifugal force before pumping to injection pump. We have to heat fuel between 90 to 120 degrees to burn efficiently. The turbo charger is as big as a car.